The rotary engine in the Mazda RX-7, especially the 13B model, is prone to coolant leaks due to the design of the engine and the age of the vehicle.

The rotary engine's apex seals can wear out faster than traditional piston engines, leading to loss of compression and power.

The 13B engine is known to consume more oil than conventional engines, requiring frequent oil checks and top-ups.

The cooling system in the 1991 RX-7 can sometimes struggle to keep the rotary engine cool, leading to overheating issues.

Due to the complexity of the vacuum system in the RX-7, leaks can occur, causing performance issues and erratic idling.

The ignition system components, such as spark plugs and ignition coils, can fail more frequently in rotary engines, leading to misfires and poor engine performance.

Fuel injectors and fuel pumps can become clogged or fail, causing the engine to run poorly or not start at all.

The rotary engine can suffer from carbon buildup on the rotor housings and intake system, affecting performance and efficiency.

Due to the unique design of the rotary engine, the apex seals can wear out faster than traditional piston engine components, leading to compression loss and reduced performance.

Rotary engines, such as the Mazda 13BE in the RX-7, are known for higher oil consumption, which requires vigilant monitoring and frequent top-offs.

The rotary engine generates more heat compared to piston engines, making the cooling system critical. Problems with the cooling system can lead to overheating and engine damage.

The RX-7's rotary engine is prone to flooding, especially if it is started and stopped without reaching operating temperature. This can make the engine hard to start.

The design of the rotary engine can lead to carbon build-up on the rotor faces and combustion chambers, which affects engine efficiency and performance.

The RX-7’s rotary engine relies heavily on vacuum systems. Leaks can cause idling issues, poor performance, and even stalling.

Due to the high-revving nature of the rotary engine, fuel injectors can become clogged or fail, leading to poor fuel delivery and engine performance issues.

The rotary engine uses a dual-spark plug system for each rotor, and issues with the ignition system can lead to misfires and reduced engine efficiency.

The Mazda RX-7's rotary engine, particularly the 13B, is prone to coolant leaks due to the design and age of the engine. This can lead to overheating if not addressed.

The apex seals in the rotary engine can wear out, leading to a loss of compression and engine power. This is a common issue in older rotary engines.

Rotary engines, including the 13B, tend to consume more oil than piston engines. Regular monitoring and topping off of oil levels are necessary to prevent engine damage.

Over time, vacuum hoses can deteriorate and cause vacuum leaks, leading to rough idling and poor engine performance.

The RX-7's ignition system can develop problems, particularly with the ignition coils and spark plugs, leading to misfires and performance issues.

The fuel injectors and fuel pump can wear out or become clogged, causing poor fuel delivery and engine performance issues.

If the RX-7 is equipped with a turbocharger, it can wear out over time, leading to reduced performance and potential engine damage if not maintained properly.

The rotary engine in the Mazda RX-7, especially the 13B model, is prone to coolant leaks due to the design of the engine and the age of the vehicle.

The rotary engine's apex seals can wear out faster than traditional piston engines, leading to loss of compression and power.

The 13B engine is known to consume more oil than conventional engines, requiring frequent oil checks and top-ups.

The cooling system in the 1991 RX-7 can sometimes struggle to keep the rotary engine cool, leading to overheating issues.

Due to the complexity of the vacuum system in the RX-7, leaks can occur, causing performance issues and erratic idling.

The ignition system components, such as spark plugs and ignition coils, can fail more frequently in rotary engines, leading to misfires and poor engine performance.

Fuel injectors and fuel pumps can become clogged or fail, causing the engine to run poorly or not start at all.

The rotary engine can suffer from carbon buildup on the rotor housings and intake system, affecting performance and efficiency.

The 1989 Mazda RX-7 features a rotary engine, which is prone to faster wear and tear compared to conventional piston engines. This can lead to a loss of compression and reduced performance.

The apex seals in the rotary engine are critical components that can wear out or fail, leading to loss of compression, misfires, and significant engine damage.

Rotary engines often consume more oil than piston engines. This can lead to frequent oil changes and the need to closely monitor oil levels.

The rotary engine can generate a lot of heat, which can lead to cooling system problems such as overheating, coolant leaks, and potential engine damage if not properly managed.

Rotary engines are susceptible to carbon buildup, which can affect engine performance, fuel efficiency, and emissions.

The intricate vacuum system in the RX-7 can develop leaks, leading to rough idling, poor acceleration, and other performance issues.

The RX-7's ignition system, including spark plugs and ignition coils, can experience wear and failure, affecting engine performance and starting reliability.

Problems with the fuel injectors, fuel pump, or fuel lines can lead to poor engine performance, starting issues, and potential engine damage.

The rotary engine in the Mazda RX-7, especially the 13B model, is prone to coolant leaks due to the design of the engine and the age of the vehicle.

The rotary engine's apex seals can wear out faster than traditional piston engines, leading to loss of compression and power.

The 13B engine is known to consume more oil than conventional engines, requiring frequent oil checks and top-ups.

The cooling system in the 1991 RX-7 can sometimes struggle to keep the rotary engine cool, leading to overheating issues.

Due to the complexity of the vacuum system in the RX-7, leaks can occur, causing performance issues and erratic idling.

The ignition system components, such as spark plugs and ignition coils, can fail more frequently in rotary engines, leading to misfires and poor engine performance.

Fuel injectors and fuel pumps can become clogged or fail, causing the engine to run poorly or not start at all.

The rotary engine can suffer from carbon buildup on the rotor housings and intake system, affecting performance and efficiency.